Description CRP is specifically designed for seal and protection of damaged pipeline or filling damaged hole (voids) of coating pipeline. CRP consists of repair patch, mastic sealant filler and hot melting adhesive Stick (HMAS). In general, CRP is available for repairing damage less than 150mm×150mm in size. If damage area of coating pipeline is larger than 150mm×150mm, Heat shrinkable wraparound sleeve (or HWT wraparound tape) is recommended
CRP Repair Patch Construction: 2-layer First layer: Copolymer hot melting adhesive Second layer: Radiation-cross-linked, high density polyethylene (unexpanded) Installation is done with gas torches. To repair a damaged area, installers round out, roughen, clean and preheat the area and apply the filler tape to fill out the holiday. CRP, cut to size, is positioned onto the treated area and heated. During heating, the adhesive softens and flows to form a tight bond with the backing. The bond strength builds up during cool-down and is fully retained after job completion.
Features & Benefits CRP provides excellent abrasion resistance, inert to acids and alkalis and solvents, moisture and corrosion resistance. The hot melting adhesive stick is supplied as rods for sealing or repairing smaller damage hole or crack (up to 10mm×10mm),which provides excellent adhesion(to PE, PVC,FBE and steel) and moisture resistance.
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